digital document visualizer. Principle of theoretical guidancePrinciples embodying the characteristics of English teachingPrinciple based on teaching effectSecond, the method and process of pattern construction. IQ Touch C Pro Interactive LED Touch Screens has dual system of Android 8.0 and optional OPS Windows system with 20 point touch. IQTouch C Pro will create a collaborative and interactive atmosphere in the classroom or workplaces, where partners could work together by casting their mobile devices wirelessly. With IQShare Lite, It could share and display the laptop screen to IQTouch C Pro screen instantly.